复杂环境下钻孔灌注桩围护体系施工技术分析

ANALYSIS ON CONSTRUCTION TECHNOLOGY OF CAST-IN-PLACE BORED PILE RETAINING SYSTEM IN COMPLEX ENVIRONMENT

文中就上海市武宁路快速化改建工程Ⅰ标,A17基坑桃浦河桥节段钻孔灌注桩的施工工艺,并结合在钻孔灌注桩施工过程中产生的问题进行探讨,并详细阐述了各个问题的具体解决措施及实施效果,据此施工经验总结了复杂环境下钻孔灌注桩围护体系施工技术要点,以促进钻孔灌注桩施工技术进一步完善。

In this paper,the construction technology of bored pile in Taopu River Bridge section of A17 foundation pit in section I of Wuning Road rapid reconstruction project in Shanghai is discussed.Combined with the problems in the construction process of the bored pile,the specific solutions and implementation effects of each problem are elaborated in detail.Furthermore,according to the construction experience,this paper summarizes key points of the construction technology of bored pile retaining system under complex environment,so as to promote the further improvement of bored pile construction technology.